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[en] In Spring 2013, the LEECH (LBTI Exozodi Exoplanet Common Hunt) survey began its ~130-night campaign from the Large Binocular Telescope (LBT) atop Mt Graham, Arizona. This survey benefits from the many technological achievements of the LBT, including two 8.4-meter mirrors on a single fixed mount, dual adaptive secondary mirrors for high Strehl performance, and a cold beam combiner to dramatically reduce the telescope's overall background emissivity. LEECH neatly complements other high-contrast planet imaging efforts by observing stars at L' (3.8 μm), as opposed to the shorter wavelength near-infrared bands (1-2.4 μm) of other surveys. This portion of the spectrum offers deep mass sensitivity, especially around nearby adolescent (~0.1-1 Gyr) stars. LEECH's contrast is competitive with other extreme adaptive optics systems, while providing an alternative survey strategy. Additionally, LEECH is characterizing known exoplanetary systems with observations from 3-5μm in preparation for JWST.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Skemer, Andrew J.; Steward Observatory, The Univ. of Arizona (United States)
Hinz, Philip; The Univ. of Arizona (United States)
Esposito, Simone; INAF - Osservatorio Astrofisico di Arcetri (Italy)
Skrutskie, Michael F.; Univ. of Virginia (United States)
Defrere, Denis ; Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Bailey, Vanessa; Steward Observatory, The Univ. of Arizona (United States)
Leisenring, Jarron; Steward Observatory, The Univ. of Arizona (United States)
Apai, Daniel; Steward Observatory, The Univ. of Arizona (United States)
Biller, Beth; Max-Planck-Institut für Astronomie (Germany)
Bonnefoy, Mickaël; Max-Planck-Institut für Astronomie (Germany)
Brandner, Wolfgang; Max-Planck-Institut für Astronomie (Germany)
Buenzli, Esther; Max-Planck-Institut für Astronomie (Germany)
Close, Laird; Steward Observatory, The Univ. of Arizona (United States)
Crepp, Justin; Univ. of Notre Dame (United States)
De Rosa, Robert J.; Arizona State Univ. (United States)
Desidera, Silvano; INAF - Osservatorio Astronomico di Padova (Italy)
Eisner, Josh; Steward Observatory, The Univ. of Arizona (United States)
Fortney, Jonathan; Univ. of California, Santa Cruz (United States)
Henning, Thomas; Max-Planck-Institut für Astronomie (Germany)
Hofmann, Karl-Heinz; Max-Planck-Institut für Radioastronomie (Germany)
Kopytova, Taisiya; Max-Planck-Institut für Astronomie (Germany)
Maire, Anne-Lise ; INAF - Osservatorio Astronomico di Padova (Italy)
Males, Jared R.; Steward Observatory, The Univ. of Arizona (United States)
Millan-Gabet, Rafael; NASA Exoplanet Science Institute (United States)
Morzinski, Katie; Steward Observatory, The Univ. of Arizona (United States)
Oza, Apurva; Univ. of Virginia (United States)
Patience, Jenny; Arizona State Univ. (United States)
Rajan, Abhijith; Arizona State Univ. (United States)
Rieke, George; Steward Observatory, The Univ. of Arizona (United States)
Schertl, Dieter; Max-Planck-Institut für Radioastronomie (Germany)
Schlieder, Joshua; Max-Planck-Institut für Astronomie (Germany)
Su, Kate; Steward Observatory, The Univ. of Arizona (United States)
Vaz, Amali; Steward Observatory, The Univ. of Arizona (United States)
Ward-Duong, Kimberly; Arizona State Univ. (United States)
Weigelt, Gerd; Max-Planck-Institut für Radioastronomie (Germany)
Woodward, Charles E.; Univ. of Minnesota (United States)
Zimmerman, Neil; Max-Planck-Institut für Astronomie (Germany))
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